MFC r305430:

Define libcpp's HAVE_DESIGNATED_INITIALIZERS in a defined and portable
way.

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

libiberty: prevent integer overflow.

Take care of very old bug leading to heap-buffer overflow by
processing certain file headers via bfd binary.

PR: 200888
Obtained from: OpenBSD
MFC after: 2 weeks

In gcc's libcpp, stop using the INTTYPE_MAXIMUM() macro, which relies on
undefined behavior. The code used this macro to avoid problems on some
broken systems which define SSIZE_MAX incorrectly, but this is not
needed on FreeBSD, obviously.

MFC after: 3 days

libgomp: bring initial BSD support from upstream.

Initial support for FreeBSD specific routines related to counting
online processors and dynamic load balancing.

Fix "detection" of the <sys/sysctl> header which upstream seems to have
done wrong.

Obtained from: GCC pre-4.4 branch (rev. 140497; LGPLv2.1+)

MFV r282150
libgomp: Update to version 4.3.5.

This is a partial revert of r282115, to bring the fromal upstream
libgomp from GCC 4.3.5 Release under LGPLv2.1+.

This is only brought to ease the ongoing development of the CPU
affinity support.

This shall not be MFC'd.

libgomp: bring early CPU affinity support from FSF GCC-4_3 branch.

This is not likely to make it into a release and is basically disabled
but should still be useful for testing.

Obtained from: GCC pre-4.3 (rev. 123494, 125542; LGPLv2.1+)

Avoid "cc1: warning: is shorter than expected" when using GNU cpp in
combination with dtrace scripts, which have "#!/usr/sbin/dtrace -Cs"
shebang lines. This is because dtrace positions the file pointer after
the shebang line, before passing the file to GNU cpp.

To fix the warning, adjust the size downwards by the current position,
after a bit of sanity checking.

Suggested by: avg
MFC after: 1 week

gcc: Add support for Apple's Block extension

Block objects [1] are a C-level syntactic and runtime feature. They
are similar to standard C functions, but in addition to executable
code they may also contain variable bindings to automatic (stack)
or managed (heap) memory. A block can therefore maintain a set of
state (data) that it can use to impact behavior when executed.

This port is based on Apple's GCC 5646 with some bugfixes from
Apple GCC 5666.3. It has some small differences with the support
in clang, which remains the recommended compiler.

Perhaps the most notable difference is that in GCC that __block
is not actually a keyword, but a macro. There will be workaround
for this issue in a near future. Other issues can be consulted in
the clang documentation [2]

For better compatiblity with Apple's GCC and llvm-gcc some related
fixes and features from Apple have been included. Support for the
non-standard nested functions in GCC is now off by default.

No effort was made to update the ObjC support since FreeBSD doesn't
carry ObjC in the base system, but some of the code crept in and
was more difficult to remove than to adjust.

Reference:
[1]
https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html
[2]
http://clang.llvm.org/compatibility.html#block-variable-initialization

Obtained from: Apple GCC 4.2
MFC after: 3 weeks

libcpp: misc fixes from Apple's GCC.

Fixes some bugs detected by Apple:
#error with unmatched quotes
pragma mark

Obtained from: Apple GCC 4.2 - 5553
MFC after: 1 week

gcc: add Apple compatible -Wnewline-eof

GCC 4.2 and previous have always warned about
"No newline at end of file".

Upstream GCC removed the warning completely but
Apple made it an optional warning. Adopt it for
compatibility with older GCC and clang.

While here, add comment to complement r258712.

Obtained from: Apple Inc. (Apple GCC 4.2 - 5531)
MFC after: 1 week

libcpp: Merge fixes from upstream

GCC preprocessor/29966:
* macro.c (lex_expansion_token): Save and restore cpp_reader's
cur_token.
(_cpp_create_definition): Don't restore cur_token here.
* lex.c (_cpp_lex_token): Added assertion.

GCC preprocessor/28709:
* macro.c (paste_tokens): Remove PASTE_LEFT from the old lhs.

GCC c/31924
* expr.c (interpret_float_suffix): Check for invalid suffix.

GCC preprocessor/14331
* lex.c (_cpp_get_fresh_line): Don't warn if no newline at EOF.

Fixup whitespacing

Obtained from: gcc per-4.3 (rev. 121340, 124356, 124358, 124730,
125212, 125255 ; GPLv2)
MFC after: 3 weeks

libiberty: upstream updates.

There is a new ChangeLog.gcc43 file but most notable:

* floatformat.c (get_field): Fix segfault with little-endian word
order on 64-bit hosts.
(put_field): Likewise.
(min): Move definition.

gcc/cp/ChangeLog
2007-05-04 Geoffrey Keating <geoffk@apple.com>

PR 31775
* mangle.c (write_mangled_name): Mangle static variable names.
(write_unqualified_name): Use local-source-name for
namespace-scope static variables.
(Completes FreeBSD's r258017 )

Obtained from: gcc 4.3 (rev. 118552, 120097, 20698, 120702,
121364, 122972, 126588; GPLv2)
MFC after: 2 weeks

libcpp: fix an underflow.

Obtained from: OpenBSD (Rev 1.2)
MFC after: 2 weeks

Fix a segfault / internal compiler error.

Among other causes, when gcc throws a warning before parsing any tokens,
the cur_token pointer is at the beginning of malloc'd memory.
Dereferencing cur_token[-1] can cause a segfault.

Code taken from OpenBSD
http://www.openbsd.org/cgi-bin/cvsweb/src/gnu/gcc/libcpp/errors.c
which was a more complete fix than the one I originally coded.

MFC after: 1 week

libcpp: Keep a record of changes from upstream GCC (pre-43).

This makes it easier to track the changes in the rare event of the code
being distributed without access to version control.

MFC after: 3 weeks

gcc: Bring updates from Google's enhanced gcc-4.2.1.

Google released and enhanced version of gcc-4.2.1 plus their local
patches for Android[1].

The patches are owned by Google and the license hasn't been changed
from the original GPLv2. We are only bringing a subset of the
available patches that may be helpful in FreeBSD. Changes specific
to android are not included.

From the README.google file[1].

Patches applied to google_vendor_src_branch/gcc/gcc-4.2.1:

gcc/Makefile.in
gcc/c-common.c
gcc/c-common.h
gcc/c-opts.c
gcc/c-typeck.c
gcc/cp/typeck.c
gcc/doc/invoke.texi
gcc/flags.h
gcc/opts.c
gcc/tree-flow.h
gcc/tree-ssa-alias-warnings.c
gcc/tree-ssa-alias.c

Backport of -Wstrict-aliasing from mainline.
Silvius Rus <rus@google.com>

gcc/coverage.c:
Patch coverage_checksum_string for PR 25351.
Seongbae Park <spark@google.com>
Not yet submitted to FSF.

gcc/c-opts.c
gcc/c-ppoutput.c
gcc/c.opt
gcc/doc/cppopts.texi
libcpp/Makefile.in
libcpp/directives-only.c
libcpp/directives.c
libcpp/files.c
libcpp/include/cpplib.h
libcpp/init.c
libcpp/internal.h
libcpp/macro.c
Support for -fdirectives-only.
Ollie Wild <aaw@google.com>.
Submitted to FSF but not yet approved.

libstdc++-v3/include/ext/hashtable.h
http://b/742065
http://b/629994
Reduce min size of hashtable for hash_map, hash_set from 53 to 5

libstdc++-v3/include/ext/hashtable.h
http://b/629994
Do not iterate over buckets if hashtable is empty.

gcc/common.opt
gcc/doc/invoke.texi
gcc/flags.h
gcc/gimplify.c
gcc/opts.c
Add Saito's patch for -finstrument-functions-exclude-* options.

gcc/common.opt
gcc/doc/invoke.texi
gcc/final.c
gcc/flags.h
gcc/opts.c
gcc/testsuite/gcc.dg/Wframe-larger-than.c
Add a new flag -Wframe-larger-than- which enables a new warning
when a frame size of a function is larger than specified.
This patch hasn't been integrated into gcc mainline yet.

gcc/tree-vrp.c
Add a hack to avoid using ivopts information for pointers starting
at constant values.

Reference:

[1]
https://android.googlesource.com/toolchain/gcc/+/master/gcc-4.2.1/

Obtained from: Google Inc.
MFC after: 3 weeks

libcpp: preprocessor speedup patches from mainline.

* lex.c (_cpp_clean_line): Add uses of __builtin_expect. Don't
look backward at the end of the line unless we saw a backslash.

* internal.h (struct cpp_reader): Add new fields:
nonexistent_file_hash and nonexistent_file_ob.
* files.c: Include "obstack.h".
(find_file_in_dir): Before trying to open the file, look up the
path name in the hash table of nonexistent files. After failing
to open the file, add the path name to the hash table.
(_cpp_find_file): Cache the results of looking up the file name
starting with the quote and bracket chain heads, if we can.
(nonexistent_file_hash_eq): New static function.
(_cpp_init_files): Initialize pfile->nonexistent_file_hash and
pfile->nonexistent_file_ob.
(_cpp_cleanup_files): Free pfile->nonexistent_file_hash and
pfile->nonexistent_file_ob.

Obtained from: gcc 4.3 (rev. 120263, 124929 ; GPLv2)
MFC after: 3 weeks

cxxfilt: small changes from Apple's developer tools

From Apple's Developer Tools 4.0 [1]:

demangle.patch
2007-05-05 Geoffrey Keating
(d_name): Detect local-source-name.
(d_prefix): Likewise.
(d_unqualified_name): Implement local-source-name.

libiberty-printf.patch

MFC after: 1 month

[1] http://opensource.apple.com/source/cxxfilt/cxxfilt-9/patches/

Quiesce warning by including appropriate header file

Resolve clang warning about a use of syslog. By using a proper enforcement
of string format in a call so syslog

/usr/src/gnu/lib/libssp/../../../contrib/gcclibs/libssp/ssp.c:137:23:
warning: format string is not a string literal (potentially insecure)
[-Wformat-security]
syslog (LOG_CRIT, msg1);
^~~~

Reviewed by: dim@

Add support for the GCC binary integer constants extension.

This is required to build the i965 backend with newer versions of mesa.

Original patch from Joerg Wunsch in GCC Bug 23479, under the GPLv2;
also taken from there in OpenBSD.

Obtained from: gcc 4.3 (rev. 125346; GPLv2)
MFC after: 5 days

Add support for "d" floating-point suffix, as defined by draft N1312
of TR 24732. Emit pedantic warning if the feature is being used.

Should solve GCC bug 39027.

Obtained from: OpenBSD
MFC after: 2 weeks

Clean up hardcoded ar(1) flags in the tree to use the global ARFLAGS in
share/mk/sys.mk instead.

This is part of a medium term project to permit deterministic builds of
FreeBSD.

Submitted by: Erik Cederstrand <erik@cederstrand.dk>
Reviewed by: imp, toolchain@
Approved by: cperciva
MFC after: 2 weeks

Add support for __COUNTER__.

__COUNTER__ allows one to obtain incrementing (read: unique) numbers
from the C preprocesor. This is useful when implementing things like a
robust implementation of CTASSERT(), which currently fails when using
it more than once on a single line of code. Probably not likely to cause
any breakage, but still.

__COUNTER__ was also added to GCC 4.3, but since that implementation is
GPLv3 licensed, I took the liberty of implementing it without looking at
any upstream sources. Therefore, this version is licensed under the same
license as the rest of the code; GPLv2.

Fix clang compile warnings.

Approved by: philip (mentor)

This commit was generated by cvs2svn to compensate for changes in r171831,
which included commits to RCS files with non-trunk default branches.

Re-add local FreeBSD change: prefer /tmp to /var/tmp and /usr/tmp
for temporary files.

This commit was generated by cvs2svn to compensate for changes in r169695,
which included commits to RCS files with non-trunk default branches.